The Tom Collins is a fine old drink—cocktail writer David Wondrich notes how it turns up (in a slightly different form) in Jerry Thomas’s seminal Bon Vivant’s Companion of 1877. Wondrich cites the drink’s “simple elegance”: just gin, lemon juice, and sugar, topped off with fizzy water.

What to buy: Finely milled superfine sugar dissolves rapidly, avoiding any risk of graininess in the finished drink.